Here's a passenger on a San Antonio bus taking a swing at another woman riding with her newborn child. The assailant might have done better if she hadn't had her own newborn strapped to her chest.

The video of the 2009 fight and several other were uncovered by San Antonio TV station WOAI. San Antonio officials say a major reason more residents won't ride the buses is "fear," and after this video, we'd call that a reasonable assumption. The new tool for fighting the fighting: A riders' code of conduct.